Glass sheet breaker



FIG. 1 is a front view of our new glass sheet breaker design;

FIG. 2 is a rear view thereof;

FIG. 3 is a plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a perspective view thereof showing the blade in an open state. 

The ornamental design for a glass sheet breaker, as shown and described. 